Hoisting and conveying apparatus.



J. MOMYLER.

HOISTING 11m commune APPARATUS. APPLICATION FILED MAR.31, 1911.

Patented Feb. 16, 1915.

2 SHEETSSHEET 1.

THE NORRIS PETERS Ca. FHOTO-LITHOV WASHINGIDN, D. c.

APPLICATION FILED MAR. 31, 1911.

Patented Feb. 16, 1915.

2 SHEETS-SHEET 2.

THE NORRIS P E'TERS CO.. PHOTO-LITHQ. WASHING mN. D. C]

time nae an JOHN MCMYLER, OF CLEVELAND, OHIO, ASSIGNOR TO THE MCMYLER INTERSTATE COMPANY, OF BEDFOBD, OHIO, A CORPORATION OF OHIO.

HUISTING AND CONVEYING- APPARATUS.

Specification of Letters Patent.

Patented Feb. 145, 1915..

original application filed May 12, 1910, Serial No. 560,772. Divided and this application filed It'iarch 31,

To all whom it may GOIZGGWL Be it known that 1, JOHN MCMYLER, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Hoisting and Conveying Apparatus, of which the following is a full, clear, and exact description.

This invention relates to hoisting and con veying apparatus and especially to certain features employed in connection with the control of the bucket which forms a part of the apparatus, the present application being a division of my prior application for hoisting and conveying apparatus, Serial No. 560,772, filed May 12th, 1910.

in my prior application above referred to, there is disclosed a hoisting and conveying apparatus which is designed particularly for unloading boats, such as ore and coal boats and which includes a frame or bridge provided with a boom, supported preferably by a series of pivoted arms, and adapted to be swung inwardly, or outwardly over the hatch of a vessel. The boom is provided at its forward end with a bucket, preferably of the clam shell type, which is designed to be raised and lowered with reference to the boom and to be swung inwardly and outwardly with the boom.

The present invention relates particularly to means for turning the bucket with reference to a supporting member such as the boom, so that the jaws of the bucketmay reach material located in different parts of the hatch, and in all directions about the 1 point at which the bucket is lowered.

The invention may be briefly summarized as consisting in certain novel details ofconstruction and combination and arrangements of parts which will be described in the speciiication and set forth in the appended claims.

In the drawings, Figure 1 is a side elevation of a portion of the apparatus; Fig. 2 is a top plan view of the same; Fig. 8 is an enlarged side View of a portion of the bucket supporting boom, of the bucket head at the forward end of the boom, and of a portion of the bucket which is designed to be raised and lowered with respect to the boom; Fig. 4 is an end view of the same; and Fig. 5 is a fragmentary detail view of a portion of the bucket head through which one leg of the opening cable passes.

Serial No. 618,202.

Referring now to the drawings, 10 represents as a whole a frame or bridge formed of structural members, and 11 represents a boom which is supported by means of sets of arms 12 and 18, which are pivotally connected to the base of the frame 10 at spaced points, and likewise pivotally connected to the boom at spaced points. This boom has a bucket connected to its outer end, and when swung outwardly carries the bucket to a position to be lowered and filled, and when swung inwardly carries the bucket to dumping position, in the manner fully described in my prior application.

At the outer end of the boom is a structure 14 which ll term the bucket head, the head being fixed with reference to the boom, and at 15 is a bucket which is adapted to be raised and lowered with reference to the head 14, and also to be turned about a vertical axis in the manner to be described. The particular construction of the bucket 15 is immaterial, the bucket here shown being of the clam shell type and being similar to the bucket disclosed in a pending application for clam shell buckets, Serial No. 534,791, filed December 24, 1909, this form of bucket being shown in the present application as a matter of convenience, and for the further reason that this particular type and construction of bucket is well suited for the apparatus partially disclosed in the present application and forming the subject matter of my parent application, of which the present application is a division.

The bucket head 14 includes a pair of parallel side plates 16 which are secured to the forward end of the boom 11 and are connected together by a horizontal plate 17 shown by full lines in Figs. 2 and 4, and by dotted lines in Fig. 3. Swiveled to the center of the plate 17 and arranged beneath the same is a substantially horizontal sheave 18 which is designed to be turned in one direction or the other with reference to the plate 17, and is preferably provided at the front with an upwardly projecting bracket 18 which supports a roller 18, (see particularly Figs. 2, 3 and 4), which is adapted to bear and roll on the upper surface of the relatively fixed plate 17. Secured to the lower side of the sheave 18 is a plate 19 provided on its under side and centrally with a dome shaped member 20 spherically concave on its under side.

The bucket 15 includes a pair of jaws 15 which are suspended by suitable arms from an upper structural part 15 this part 15 being provided at the top with a dome shaped member 21 spherically convex on its upper side and adapted to engage and fit within the recess of the dome shaped member 20 carried by the head 14, so that the bucket when raised the full distance with reference to the head 14: will be centered thereon.

The bucket is adapted to be closed and thence raised with reference to the head 14: by means of a pair of cables 22 which extend about suitable sheaves of the bucket and from the bucket extend upwardly on oppositesides of the head 14; about a pair of sheaves 23 carried by the head, these sheaves being located about centrally of the side plate 16 and being supported on the outer sides thereof. The closing and hoistiug cables 22 pass from the sheaves 23 about suitable sheaves upon the supporting frame or bridge 10, and thence extend to a suitable hoisting mechanism of the apparatus, the hoisting mechanism not being here shown. It will be understood that by means of these cables 22, the bucket will be closed, and then raised until the bucket is centered on the head by means of the members 20 and 21, and thence by these same cables 22, the boom with the bucket will be drawn inwardly to the position shown in Fig. 1.

The bucket is designed to be opened and to be supported when in open position by means of a cable 24, one end of which is dead-ended on a projection 19 on the forward part of the plate 19, which as before stated is secured to the bottom of the horizontal sheave 18. From the plate 19, the opening cable 24- extends downwardly about suitable sheaves of the bucket and thence extends upwardly from the bucket 15, this upwardly extending leg or section of the cable being substantially diametrically opposite the downwardly extending leg secured to the plate 19. The upwardly extending leg of the opening cable 24% passes between a pair of guide pulleys supported on an extension 19 of the plate 19 and thence extends upwardly onto a drum 25 supported by the head 14 near the rear end thereof. Mounted on the same shaft with the drum 25 is a drum 26 substantially half the size of the drum 25, the drums 25 and 26 being adapted to be rotated together. Extending about the drum 26 isa second or supplemental. opening cable 27 which extends rearwardly about suitable sheaves on the supporting frame 10, and is designed to be connected to the hoisting mechanism. It will be understood that when the closing and hoisting cables 22 are slackened, and when the bucket is supported by the cable 24, the bucket jaws will be opened, and if the drums 25 and 26 are turned so as to unwind the cable 24, the bucket will be lowered with the bucket jaws remaining open.

It will be seen that, when the bucket is supported at a distance from the head 14 by means of the opening cable 24, if the sheave 18 is turned, the bucket will be turned for the reason that both legs or sections of the opening cable have a connection with the plate 19 at diametrically opposite points thereof. Therefore for the purpose of turning the bucket so that it may reach material on all sides thereof, or in all directions with respect to the point at which the bucket is lowered, I provide this sheave 18, together with means whereby it may be turned in either direction. The turning of this sheave 18 is accomplished by ieans of a pair of cables 28 and 29 which extend partially about the sheave in opposite directions and are dead-ended thereon. These cables 28 and 29 extend from the sheave 18 forwardly about sheaves 30 carried by the head 141- at the outer ends of the plates 16, and thence these cables extend rearwardly to some point where they may be controlled manually or otherwise by the operator.

While I have shown only one specific form of bucket turning means,this being in the form of a swiveled sheave connected to the bucket opening cable and adapted to be turned by cables engaging the sheave, I consider within the scope of my invention all modifications which include a rotary member carried by the head and designed to be turned in any manner whatsoever so as to turn the bucket through the medium of the cable or cables extending between the bucket and head.

Having thus described my invention, what I claim is:

1. In a hoisting and conveying apparatus, a bucket having jaws adapted to be opened and closed, a head toward and from which the bucket is adapted to be moved, and cooperating means on the head and bucket for centering the bucket when elevated to the head, said means comprising a member on the upper part of the bucket, and provided with a convex portion, and a member on the lower part of the head, and provided with a concave portion adapted to receive the convex portion.

2. In a hoisting and conveying apparatus, a bucket, a head on which said bucket is adapted to be centered and from which it is adapted to be lowered for the purpose of receiving a load, a member swiveled on said head. cable extending between the bucket and head for opening the bucket and for supporting the same in open position, said cable having a connection with said swiveled member, means for turning said swiveled member in either direction so as to turn the bucket about a vertical axis and cooperating means on the head and bucket for centering the bucket on the head when the bucket is elevated.

3. In a conveying apparatus, a bucket, a bucket head on which the bucket is adapted to be centered and from which it is adapted to be lowered for the purpose of receiving a load, a sheave swiveled on said head, cables for closing and hoisting the bucket with reference to the head and for opening the bucket, the bucket opening cable having one end fixed with reference to the sheave, means for turning said sheave in opposite directions, and cooperating means on the head, and on the bucket for centering the bucket on the head when the bucket is ele vated.

i. In a conveying apparatus, a bucket having movable jaws or scoops adapted to be closed and opened, a bucket head with which said bucket cooperates and with reference to which the latter is adapted to be raised and lowered, saidhead comprising a pair of side plates and a cross plate extending between the same, a cable connected to said bucket for closing and hoisting the same with reference to the head, a member swiveled on the cross plate of said head, and a cable for opening the bucket and for supporting the bucket when open, said cable having one of its ends fixed with reference to said member, means for turning said members in opposite directions; and a roller carried by said swiveled member and bearing on the top face of said cross plate.

5. In a hoisting and conveying apparatus, a bucket, asupport for the bucket, a swiveled member carried by said support, a cable for supporting the bucket from said support when the bucket is in open position, said cable having one end fastened to said swiv eled member, thence extending downward to the bucket, and thence extending upward to said support; said upward extending part of the cable being guided by said swiveled member so as to turn therewith, and means for turning said swiveled member so as to turn the bucket when the latter is supported from said support by said cable.

In testimony whereof, I hereunto afliX my signature in the presence of two witnesses.

JOHN MoIvIYLER.

Vitnesses:

H. R. SULLIVAN, A. F. Kwrs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patenta. Washington, I). E." 

